Final answer:
The Japanese started using charts in the 17th century, while the Europeans and Chinese started using charts in the 19th and 15th centuries respectively. Africans were using charts as early as the 8th century.
Step-by-step explanation:
The Japanese were looking at charts as far back as the 17th century, whereas the Europeans only started using charts in the 19th century.
The Chinese also developed charting techniques in the 15th century.
Africans used charts in their trade as early as the 8th century.
No one else in the world used charts in the 20th century.